Shure A15HP High Pass Filter
Balanced XLR in-line high pass filter that reduces low frequencies below 100 Hz.
This filter rolls off low audio frequencies to reduce 60 Hz electrical hum, low-frequency wind noise, air conditioner noise, or stand-and floor-transmitted low-frequency vibrations.
When loaded with a low-impedance microphone input (800 ohms or more), the rolloff is 12 dB per octave below 100 Hz. When loaded with 150 ohms, the rolloff is 3 dB at 100 Hz. The output is flat above the rolloff point (with a maximum loss of 0.5 dB at 1 kHz).
SPECIFICATIONS
- Frequency Response
- Flat above rolloff point; -0.5 dB maximum at 1 kHz
- Impedance
- EIA rated at 150 Ω
- Distortion
- 2.5% maximum (100 mV, open circuit voltage)
- Connectors
- Input: XLR, female
- Output: XLR, male
- Housing
- Full magnetic shield, steel with gray enamel finish
- Dimensions
- 19 mm (.75in. diameter); 114 mm (4.5in. long)
- Flat above rolloff point; -0.5 dB maximum at 1 kHz
- EIA rated at 150 Ω
- 2.5% maximum (100 mV, open circuit voltage)
- Input: XLR, female
- Output: XLR, male
- Full magnetic shield, steel with gray enamel finish
- 19 mm (.75in. diameter); 114 mm (4.5in. long)
